Finding the Fourth Proportional to 498.72, 747.86 and 267.56

Step by Step Solution

1. Step 1: Write the proportion equation
   498.72 : 747.86 = 267.56 : x
2. Step 2: Convert to fraction form
   498.72/747.86 = 267.56/x
3. Step 3: Cross multiply
   498.72x = 747.86 × 267.56
4. Step 4: Simplify right side
   498.72x = 200,097.42
5. Step 5: Solve for x
   x = 200,097.42/498.72
6. Step 6: Final answer
   x = 401.22